Initial checkin of gRPC to third_party/

third_party/grpc/tools/buildgen/plugins/expand_filegroups.py

Index: third_party/grpc/tools/buildgen/plugins/expand_filegroups.py
diff --git a/third_party/WebKit/LayoutTests/http/tests/websocket/workers/resources/echo_wsh.py b/third_party/grpc/tools/buildgen/plugins/expand_filegroups.py
similarity index 55%
copy from third_party/WebKit/LayoutTests/http/tests/websocket/workers/resources/echo_wsh.py
copy to third_party/grpc/tools/buildgen/plugins/expand_filegroups.py
index 429f58186e3fce43dc21e81e0f9d7e20c7e0bf70..156bdc44171cbc323f9382fd7dc762a463bfece3 100644
--- a/third_party/WebKit/LayoutTests/http/tests/websocket/workers/resources/echo_wsh.py
+++ b/third_party/grpc/tools/buildgen/plugins/expand_filegroups.py
@@ -1,4 +1,4 @@
-# Copyright 2010, Google Inc.
+# Copyright 2015, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,20 +27,48 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+"""Buildgen expand filegroups plugin.
 
-from mod_pywebsocket import msgutil
+This takes the list of libs from our yaml dictionary,
+and expands any and all filegroup.
 
+"""
 
-_GOODBYE_MESSAGE = 'Goodbye'
 
+def excluded(filename, exclude_res):
+  for r in exclude_res:
+    if r.search(filename):
+      return True
+  return False
 
-def web_socket_do_extra_handshake(request):
-    pass  # Always accept.
 
+def mako_plugin(dictionary):
+  """The exported plugin code for expand_filegroups.
 
-def web_socket_transfer_data(request):
-    while True:
-        line = msgutil.receive_message(request)
-        msgutil.send_message(request, line)
-        if line == _GOODBYE_MESSAGE:
-            return
+  The list of libs in the build.yaml file can contain "filegroups" tags.
+  These refer to the filegroups in the root object. We will expand and
+  merge filegroups on the src, headers and public_headers properties.
+
+  """
+  libs = dictionary.get('libs')
+  filegroups_list = dictionary.get('filegroups')
+  filegroups = {}
+
+  for fg in filegroups_list:
+    filegroups[fg['name']] = fg
+
+  for lib in libs:
+    for fg_name in lib.get('filegroups', []):
+      fg = filegroups[fg_name]
+
+      src = lib.get('src', [])
+      src.extend(fg.get('src', []))
+      lib['src'] = src
+
+      headers = lib.get('headers', [])
+      headers.extend(fg.get('headers', []))
+      lib['headers'] = headers
+
+      public_headers = lib.get('public_headers', [])
+      public_headers.extend(fg.get('public_headers', []))
+      lib['public_headers'] = public_headers